Plywood Gussets For Roof Trusses

Plywood gusset nailing pattern.

Plywood gussets for roof trusses.

Having designed a truss now trying to figure out how big the plywood gussets need to be and what kind of fastening schedule is required. Engineering drawings have to be submitted to the local building department as part of a building permit application. Plywood gussets means site built trusses that have not been engineered. Loads indicate the bottom chord will be in tension with a force of around 300 pounds the top chords will be in compression at around 311 pounds or so.

Trusses that use dimension wood 2 by 4 or 2 by 6 can also be constructed in a shop using osb or plywood cut in triangular shapes called gussets nailed onto the joint. We have seen trusses using plywood gusset plates glued and nailed to the truss webs that were constructed at the homesite by the carpenters a few times in the 1980s in the florida keys. Nailed plywood gusset roof trusses author. No they are usually not acceptable and the reason is that roof trusses for a home must be designed and certified to handle their anticpated live and dead loads by a professional engineer.

Longer nails would come out the other side of the dimensional lumber being used to make the truss making it extremely difficult to attach the gusset on the other side. Plywood gussets are nailed in place with 6d 2 long common box nails. It s pretty labor intensive says vogt. 10 23 2019 9 32 56 am.

Factory built trusses are designed by qualified designers.